Issue 32, 2014

Aqueous rechargeable lithium batteries using NaV6O15 nanoflakes as high performance anodes

Abstract

Poor cycling performance is still the big challenge for aqueous rechargeable lithium batteries (ARLBs), in which the instability of the anode is considered to be the main issue. In this work, NaV6O15 nanoflakes were synthesized by a two-step approach and a NaV6O15//LiMn2O4 ARLB system with superior cycling performance was constructed. The galvanostatic charge–discharge result demonstrates an initial discharge capacity of 110.7 mA h g−1 (based on anode mass) at 150 mA g−1 and the capacity retention of ca. 90% and 80% at 300 mA g−1 after 100 and 400 cycles, respectively. Such superior cycling performance of ARLBs is mainly due to the intrinsic 3-D tunneled structure of NaV6O15, nanoflake morphology and relatively stable electrode surface, as verified by the X-ray diffraction (XRD), electrochemical impedance spectroscopy (EIS), and scanning electron microscopy (SEM) results of the tested electrodes. Moreover, a simple single-phase reaction mechanism during the lithium ion insertion/extraction process is observed for NaV6O15 by XRD analysis.

Graphical abstract: Aqueous rechargeable lithium batteries using NaV6O15 nanoflakes as high performance anodes

Supplementary files

Article information

Article type
Paper
Submitted
06 Apr 2014
Accepted
03 Jun 2014
First published
06 Jun 2014

J. Mater. Chem. A, 2014,2, 12999-13005

Author version available

Aqueous rechargeable lithium batteries using NaV6O15 nanoflakes as high performance anodes

D. Sun, G. Jin, H. Wang, P. Liu, Y. Ren, Y. Jiang, Y. Tang and X. Huang, J. Mater. Chem. A, 2014, 2, 12999 DOI: 10.1039/C4TA01675K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements